<template>
  <div id="app">
    <!-- <el-button>按钮</el-button> -->
    <div class="box">
      <div class="left"></div>
      <div class="conter"></div>
      <div class="right"></div>
    </div>
  </div>
</template>

<script>
import HelloWorld from "./components/HelloWorld.vue";

export default {
  name: "App",
  components: {
    HelloWorld,
  },
};
</script>

<style lang="less" scoped>
#app {
  .box {
    display: flex;
    width: 100%;
    height: 100vh;
  }
  .left {
    flex: 1;
    background: red;
  }
  .conter {
    flex: 1;
    background: blueviolet;
  }
  .right {
    flex: 1;
  }
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
}
</style>
